39 results about "Mechanical stretching" patented technology

The invention relates to the technical field of cloth cutting, in particular to a public security raincoat production cloth cutting device which comprises a cutting table installed at one end of the top of a processing table and a conveying belt fixedly installed at one end of the cutting table. The cutting mechanism comprises a supporting frame arranged on the cutting table and a cutting knife installed on the inner side of the supporting frame, a servo air cylinder is fixedly installed at the top of the supporting frame, a driving transverse plate is detachably arranged on an output shaft of the servo air cylinder, and the cutting knife is detachably fixed to the driving transverse plate. The situation that the cloth is mechanically stretched or deformed in the cutting process to affect the size accuracy of the cut cloth can be prevented, the edge of the cut cloth is smooth and tidy, the cutting quality is guaranteed, the cloth cutting precision and the production efficiency are improved, meanwhile, cloth waste is reduced, the raincoat production process can be optimized, and the production cost is reduced. And the quality of finished products can be improved.

The invention relates to the technical field of functional textiles, and discloses a waterproof breathable warm-keeping fabric which comprises a fabric base layer and a breathable layer, and the fabric base layer is of a fabric structure; the breathable layer is hot-pressed on the fabric base layer; the breathable layer comprises a film layer which is obtained by processing a polymer strip in a mechanical stretching mode and is of a multi-layer overlapped microporous structure; wherein the difference value between the gram weight of the waterproof breathable warm-keeping fabric and the gram weight of the fabric base layer is smaller than or equal to 7g / m < 2 >, the breathability of the waterproof breathable warm-keeping fabric is larger than or equal to 5mm / s, the hydrostatic pressure is larger than or equal to 10kPa, and the number of down drills is smaller than or equal to 6. Therefore, under the condition of ensuring that the fabric has good air permeability, heat retention property and waterproofness, the overall weight can be effectively reduced, and the down-proof effect is improved.

The utility model discloses mechanical stretching stamping equipment for an aluminum extrusion part, which relates to the technical field of aluminum extrusion part production and comprises a fixed mounting base plate, a stamping die plate is detachably mounted at the top end of one side of the fixed mounting base plate, and a stretching plate is fixedly connected to the top end of the side surface of the fixed mounting base plate. The stamping die disc is directly mounted on the fixed mounting base plate in a buckled mode, the aluminum materials stretch into the fixing frame through the feeding arrangement groove, the position, in the fixing frame, of the threaded extrusion rod is rotated by rotating the top disc, and the aluminum materials are extruded and fixed through the extrusion disc; the two sides clamp and fix aluminum materials at the same time, the stretching driving motor controls rotation of the threaded driving rod, so that the sliding adjusting base plates are directly controlled to slide at the top end in the stretching disc to adjust the positions, and the distance between the sliding adjusting base plates on the two sides is adjusted, so that stretching operation of the aluminum materials can be achieved.

A spinning system and method for sheet-shaped materials. The spinning system comprises sheet-shaped materials, which are not limited to a base material and woven products and which serve as raw materials, wherein a cutter of a strip-forming device moves in a set direction to cut various sheet-shaped materials so as to obtain strip-shaped materials; pre-treatment and after-finishing are performed so as to make the strip-shaped materials suitable for spinning; and a yarn-forming device is used to twist at least one strip-shaped material into textile yarn. By using sheet-shaped materials, the present disclosure has the advantages of a relatively short industry chain, low cost, low requirements for fibers, and a wide variety of web-forming crafts; a conventional non-woven fabric chain is combined with a spinning chain, effectively reducing the weaving costs of non-high-yarn-count yarn, and therefore the present disclosure can be used for secondary yarn-forming utilization of coarse fibers, short fibers, hard fibers, etc. in textile waste; the parameter requirements of raw fibers required for conventional spinning can be greatly reduced, facilitating the use of new natural materials in forming yarn; and fibers which have been subjected to web formation can meet the requirement for required mechanical stretching, thus expanding the range of raw materials for spinning.

The application discloses a mechanical stretching device, a seat unit and a zero-gravity zero-reclining wall sofa. The leg assembly of the mechanical stretching device comprises a fifth leg link, a tenth leg link and a main footrest. In the process of changing the mechanical stretching device from a sitting position to a TV position, the fifth leg link is approximately translated, the fifth leg link pushes the main footrest to rotate relative to the tenth leg link, and the main footrest is ensured to rotate in a small range after the leg assembly is lifted to a height. The support swing assembly is provided with a first limiting point. The composite limiting part of the first limiting point comprises a rigid part and a flexible part. The flexible part buffers the impact between the elastic deformation buffer base and the composite limiting part. The composite limiting part is also arranged in the base, the backrest assembly, the leg assembly, the connecting assembly and the support swing assembly in the mechanical stretching device, so that the mechanical stretching device is prevented from appearing a jerk and abnormally twisting in the overall movement process, and the mechanical stretching device is also prevented from emitting noise in the movement process.

The invention discloses a mechanical stretching device and a seat unit. The mechanical stretching device can prevent the mechanical stretching device from overturning when the mechanical stretching device is in a lying posture position. The mechanical stretching device further comprises a swing assembly and a supporting assembly, the swing assembly is movably connected to the base, the supporting assembly comprises a second supporting rod and a third supporting rod, one end of the third supporting rod is rotationally connected to the swing assembly, the other end of the third supporting rod is rotationally connected to the second supporting rod, and one end of the second supporting rod is movably connected to the leg assembly. A roller is arranged at the other end of the second supporting rod; in the process that the mechanical stretching device is changed from the sitting posture position to the TV posture position, the third supporting rod and the swing assembly are relatively static, and the second supporting rod rotates in the third direction so as to reduce the height of the rolling wheel; in the process that the mechanical stretching device is converted from the TV posture position to the lying posture position, the third supporting rod and the swing assembly move relatively, and the second supporting rod moves forwards in the first direction and rotates in the third direction so that the rolling wheel can be supported on the ground.

The application provides a dynamic switching module and application thereof. The dynamic switching module comprises a base, a movable part, a supporting rod and a gear. The gear is rotatably connected to the base. The gear and the upper part of the supporting rod are fixed in the circumferential direction. The movable part is provided with a row of meshing teeth which are in transmission engagement with the gear. The movable part moves linearly along the base after being triggered and drives the gear to rotate so as to rotate and open the supporting rod. The structure is simple, and the state switching operation is flexible and convenient. Then, the application of the dynamic switching module is provided. The appropriate supporting link of the mechanical stretching device is calculated and selected, and the triggering part is installed thereon. Then, the dynamic switching module is installed on the inner side of the front end of the armrest, so that the triggering part moves with the supporting link and triggers the dynamic switching module when the leg supporting assembly is about to be completely opened, so that the supporting rod is opened and supported on the ground. The dynamic switching module cooperates with the mechanical stretching device to provide effective support for the functional sofa, and avoids the situation of forward tilting and falling during the unfolding process of the leg supporting assembly.

The application discloses a one-way contraction type liquid crystal elastomer fiber and an intelligent fabric combined with a knitted structure, and belongs to the field of intelligent polymer materials. The fiber with the one-way contraction-maintenance characteristic is prepared by introducing a specific amount of photo-thermal response material into a liquid crystal elastomer system and combining internal and external double-stretching spinning processes. The fiber prepared by the method is pre-elongated by mechanical stretching, rapidly contracts under infrared light stimulation, maintains the contraction state after the light source is removed, and is restored by mechanical stretching again, so that the "on-off" type precise control is realized. The fiber is combined with the knitted structure to prepare the intelligent fabric with the local fixed-point driving capability; further, the controllable deformation of the material under the cooperation of multiple physical fields is utilized to construct a logic operation unit with "force" instead of "electricity", so that logical functions such as and, or and not are realized. The application can be applied to the fields of artificial muscles, intelligent wear, light-controlled switches and coreless logic devices.

The invention relates to the technical field of detection. The invention discloses an accelerated aging method for textiles, which comprises the following steps: S1, carrying out mild oscillation cleaning pretreatment to remove impurities, and after cleaning, standing in a preset temperature and humidity environment until the weight is constant; s2, partitioning and marking the pretreated textile structure; s3, S4, in the same preset temperature and humidity environment, graded mechanical stretching with gradually increased low, medium and high stress is applied to the partitioned textiles, and periodic friction is applied to the marked areas; and S5, detecting the color after friction. The preset temperature and humidity are one of normal temperature, normal humidity, constant temperature and constant humidity. Impurities are removed through pretreatment, the initial state is determined, graded stretching and targeted friction are applied according to the characteristics of the textiles in a partitioned mode, data accuracy is guaranteed in the same temperature and humidity environment, two time sequences meet different requirements, and actual aging is simulated. The detection whole process is tracked, special indexes are complementarily measured according to temperature and humidity, multiple performances are comprehensively measured, and a scientific basis is provided for textile quality evaluation, service life prediction and optimization.

The utility model relates to an anti-forward-leaning seat mechanical stretching device which comprises two mechanical stretching units arranged in a bilateral symmetry mode and a connecting assembly connecting the two mechanical stretching units, and each mechanical stretching unit comprises a leg and foot assembly used for stretching and retracting legs and feet and a backrest seat assembly used for adjusting the posture of a backrest and a seat. The backrest seat assembly is mounted on the base through a front supporting piece and a rear supporting piece, and the backrest seat assembly is characterized in that the backrest seat assembly is provided with an auxiliary supporting leg for preventing forward leaning, and the front supporting piece and the auxiliary supporting leg are fixedly connected to form a herringbone support, so that the front side of the front supporting piece is supported in the inclined backward direction when a user lies down, and the forward leaning balance line of the seat moves forwards by 10-15 cm. The stability and reliability of the front support are high in the lying posture, the forward leaning balance line of the seat moves forwards by 10-15 cm, the forward overturning risk of the seat is reduced, the structure is relatively simple, and the cost is low.

The utility model belongs to the technical field of household stretching, and relates to an intelligent furniture mechanical stretching structure. Comprising a sofa body, a supporting plate and a driving assembly, the supporting plate is rotationally mounted on the front side of the sofa body; a limiting groove is formed in the bottom face of the supporting plate, and a movable block is connected into the limiting groove in a limiting and sliding mode. A pushing piece is hinged to the movable block, and the pushing piece is arranged below the sofa body in a front-back moving manner; the driving assembly is arranged at the bottom of the sofa body and is in driving connection with the pushing piece. The pushing piece moves forwards, and the supporting plate can be pushed to change to the horizontal state through the movable block. The pushing piece moves backwards, and the supporting plate is changed to be in a vertical state through the movable block. The system is simple in structure and stable in use, and can be conveniently accessed to an intelligent household system.

The present invention provides a mechanical stretching device, wherein the mechanical stretching device includes: a seat unit, which includes a mounting plate, and a mounting plane is arranged on the mounting plate; a connecting rod structure, which is connected to the mounting plate through a first rivet point and a second rivet point on the mounting plate; and a leg unit, which is connected to the mounting plate through a third rivet point and a fourth rivet point on the mounting plate; the first rivet point, the second rivet point and the third rivet point are all located below the mounting plane; the vertical distance between the center of the fourth rivet point and the extension line of the mounting plane of the mounting plate does not exceed 10 mm.

The present application relates to a hemp fiber-based composite fabric sound-absorbing material and a preparation method thereof, and relates to the field of textile materials.The present application comprises a radial hemp fiber-based composite three-strand braid and a weft PP melt-blown cloth strip, the hemp fiber-based composite three-strand braid is woven by a hemp fiber-based composite non-woven cloth strip and two PP melt-blown cloth strips through a three-strand braid mode; the hemp fiber-based composite non-woven cloth is made of hemp fibers, hollow polyester fibers and low-melting-point 4080 through an air-laid process and a hot air bonding process; the radial and weft directions are woven in a plain weave mode to form an integral whole, and the hemp fiber-based composite fabric sound-absorbing material is prepared.The present application effectively solves the problems of low utilization rate of hemp fibers, poor mechanical tensile resistance and limited durability in the existing sound-absorbing materials.

The invention relates to the technical field of cloth tailoring, and discloses a cloth tailoring device for school uniform production, the cloth tailoring device comprises a workbench, the top of the workbench is provided with a stretching mechanism, a tailoring mechanism, a leveling mechanism and a discharging mechanism in sequence from left to right, and the discharging mechanism is used for movably supporting a material roller; the flattening mechanism is used for pressing and flattening cloth, the cutting mechanism is used for cutting the cloth, and the stretching mechanism is used for stretching the cloth in a fixed-length mode. Through the design of the stretching mechanism, an air extractor is controlled to work, suction force can be generated, the suction force can adsorb the end of cloth to the bottom of a stainless steel wire net, then a servo motor is controlled to work, a translation seat can be driven to integrally translate leftwards, the function of stretching the cloth at a fixed length can be achieved, and the working efficiency can be remarkably improved; manual measurement and stretching links are eliminated, operation time consumption and labor cost are reduced, and accurate mechanical stretching ensures that the size of the cloth is consistent.

The invention relates to the technical field of heart valve prosthesis preparation, in particular to a PCL-PU three-layer composite fiber heart valve prosthesis and a preparation method thereof. The PCL-PU three-layer composite fiber artificial heart valve is of a three-layer structure and comprises a first disordered fiber layer, a second ordered fiber layer and a third disordered fiber layer which are arranged in sequence; the first disordered fiber layer and the third disordered fiber layer are both polycaprolactone fiber layers; the second ordered fiber layer is a composite fiber layer of polycaprolactone and polyurethane; the mass ratio of the first disordered fiber layer to the second ordered fiber layer to the third disordered fiber layer is (0.75-1.7): 1: (0.75-1.7); and the mass ratio of the polycaprolactone to the polyurethane in the second ordered fiber layer is 1: (0.5-2). The PCL-PU three-layer composite fiber artificial heart valve disclosed by the invention has excellent mechanical tensile property, good aperture condition and excellent biocompatibility.

The invention belongs to the field of cashmere product detection, and discloses a cashmere product surface detection device which comprises a frame serving as a supporting structure of the detection device. The cashmere conveying roller way is arranged on the frame and used for conveying cashmere products; the display screen is arranged on the outer side of the frame and is used for displaying detection data; the double-sided laying detection assembly comprises a surface defect camera module, a fabric flattening roller, a transmission assembly, a rolling piece and a bottom surface defect detection module; the fabric flattening roller is rotationally arranged in the frame; dynamic flattening is achieved through rolling friction of the drum-shaped curved surface of the fabric flattening roller and the rolling piece, the drum-shaped structure naturally flattens wrinkles through transverse component force, self-rotation of the rolling piece is matched with the conveying direction to form longitudinal auxiliary flattening, damage such as fiber breakage and fuzzing is avoided, the quality risk caused by difficult control of traditional mechanical stretching strength is solved, and the production efficiency is improved. The original texture and integrity of the cashmere product are protected.

The utility model provides a wear-resistant and high-elastic bio-based nylon single-component fabric. The bio-based nylon single-component fabric comprises a bio-based fabric layer and a fluoride-free bio-based waterproof functional layer arranged on at least one surface of the bio-based fabric layer, the bio-based fabric layer is formed by interweaving warp yarns and weft yarns, the warp yarns and the weft yarns are 20D-40D nylon 510 yarns, and the warp yarns and the weft yarns are double-twisted mechanically stretched yarns. The bio-based nylon single-component fabric mainly comprises a nylon single component, is convenient to recycle and has the high wear-resistant property of nylon 510. The fluoride-free bio-based waterproof functional layer on the bio-based fabric layer can endow the fabric with waterproof performance, and also has the advantages of being non-toxic, easy to degrade, environment-friendly and the like.

The invention provides a sports sofa and a use method. The sports sofa comprises a mechanical stretching device and a linear brake for driving the stretching device to move, the mechanical stretching device comprises a base, a displacement mechanism and a backrest connecting piece, the displacement mechanism comprises a longitudinal rod, a first double-swing-arm set, a second double-swing-arm set, a third double-swing-arm set and a double-rocker set, the first double-swing-arm set is arranged on the base, the third double-swing-arm set is arranged on the longitudinal rod, and the second double-swing-arm set is arranged on the second double-swing-arm set. The second double-swing-arm group is arranged between the first double-swing-arm group and the third double-swing-arm group; the double-rocker set is arranged at the rear end of the longitudinal rod, and the backrest connecting piece is arranged on the double-rocker set. In the using process, the linear brake drives the three double-swing-arm sets to swing forwards and drives the longitudinal rod, the double-rocker set and the backrest connecting piece to move forwards together; in the TV posture state, when the linear brake continues to drive the three double-swing-arm sets to swing forwards, the double-rocker sets swing forwards on the longitudinal rods, and the backrest connecting pieces move forwards relative to the longitudinal rods and rotate backwards under the action of the double-rocker sets.

The present invention discloses a nickel alloy mesh detection device, which relates to the technical field of detection and includes a detection table, a mechanical stretching module, an optical detection module and an intelligent control module installed on the top of the detection table: The mechanical stretching module includes four groups of independently controllable stretching mechanisms, and each group of stretching mechanisms includes a clamp, a translation driving component and a swing driving component; The clamp is used for clamping the edge of the mesh and transmitting a composite mechanical load, the translation driving component is used for driving the clamp to displace in the plane direction to apply an adjustable static stretching tension to the mesh, and the swing driving component is used for driving the clamp to swing periodically around the horizontal axis. With the cooperation of four groups of independent stretching mechanisms and dual-mode driving, namely translation and swing, the present invention can superimpose dynamic cyclic and stepped loads on the basis of static stretching, accurately simulate the real mechanical environment of the mesh under complex working conditions such as high-speed printing and alternating stress, and realize the full-dimensional evaluation of the fatigue resistance and creep resistance of the material.

A spinning system and method for sheet-shaped materials. The spinning system comprises sheet-shaped materials, which are not limited to a base material and woven products and which serve as raw materials, wherein a cutter of a strip-forming device moves in a set direction to cut various sheet-shaped materials so as to obtain strip-shaped materials; pre-treatment and after-finishing are performed so as to make the strip-shaped materials suitable for spinning; and a yarn-forming device is used to twist at least one strip-shaped material into textile yarn. By using sheet-shaped materials, the present disclosure has the advantages of a relatively short industry chain, low cost, low requirements for fibers, and a wide variety of web-forming crafts; a conventional non-woven fabric chain is combined with a spinning chain, effectively reducing the weaving costs of non-high-yarn-count yarn, and therefore the present disclosure can be used for secondary yarn-forming utilization of coarse fibers, short fibers, hard fibers, etc. in textile waste; the parameter requirements of raw fibers required for conventional spinning can be greatly reduced, facilitating the use of new natural materials in forming yarn; and fibers which have been subjected to web formation can meet the requirement for required mechanical stretching, thus expanding the range of raw materials for spinning.

The utility model provides a sofa capable of improving the space utilization rate during packaging, which comprises a mechanical stretching device and a backrest detachably connected to the mechanical stretching device, and the mechanical stretching device is provided with an accommodating space opened downwards and / or backwards; the sofa has a packaging state and a using state; in a packaging state, the backrest is arranged in the accommodating space of the mechanical stretching device; in the using state, the backrest is installed at the rear end of the mechanical stretching device. The containing space enough for containing the backrest is reserved in the mechanical stretching device, so that the backrest can enter the containing space in the packaging state, the packaging size is equivalent to the size only occupied by the mechanical stretching device during packaging, and the backrest can be arranged and placed more compactly during transportation; the backrest does not need to be additionally packaged, so that the packaging and transporting cost is reduced; after a consumer receives the sofa, the sofa can be in a use state only by installing the backrest on the rear end part of the mechanical stretching device, and the assembly is convenient.

The utility model discloses a swing locking assembly for a mechanical stretching device. The swing locking assembly comprises a base, a swing piece, a moving frame and a moving piece. The base plays a main body supporting role, the swinging piece is rotationally connected with the base and the moving frame and endows the mechanical stretching device with the swinging capacity, and the moving piece is used for driving device state switching; the moving part and the swinging part are respectively provided with a limiting part and a limiting groove, the limiting groove comprises a moving space and a locking end, and the position change of the limiting part in the limiting groove can control the swinging state of the device; when the limiting piece is in the movement space, the device can swing; entering a locking end, and enabling the device to be static; according to the assembly, through the ingenious structural design, the problem that an existing mechanical stretching device is insufficient in stability and flexibility when the sitting posture and the standing assisting state are switched is effectively solved, the stability of the standing assisting function is improved, the swing flexibility in the sitting posture state is optimized, and the assembly has wide application prospects.

The invention discloses a nickel alloy gauze detection device, and relates to the technical field of detection, and the nickel alloy gauze detection device comprises a detection table, and a mechanical stretching module, an optical detection module and an intelligent control module which are installed at the top of the detection table, each group of stretching mechanism comprises a clamp, a translation driving assembly and a swing driving assembly; the clamp is used for clamping the edge of the gauze and transmitting a composite mechanical load, the translation driving assembly is used for driving the clamp to move in the plane direction so as to apply adjustable static stretching tension to the gauze, and the swing driving assembly is used for driving the clamp to periodically swing around a horizontal shaft. The four groups of independent stretching mechanisms are matched with dual-mode driving, namely translation and swinging, dynamic circulation and stepped loads can be superposed on the basis of static stretching, the real mechanical environment of the gauze under the complex working conditions of high-speed printing, alternating stress and the like is accurately simulated, and full-dimensional evaluation of the anti-fatigue and anti-creep performance of materials is achieved.

The utility model discloses a sofa mechanical stretching combination device convenient to disassemble and assemble, relates to the technical field of sofa mechanical stretching combination devices, and aims to solve the problems that an existing sofa does not have a good adjusting function, so that the use effect of the sofa is poor, and the use cost is high. According to the technical scheme, the mechanical stretching combined device is characterized in that the mechanical stretching combined device comprises a supporting base, a soft cushion is installed above the supporting base, fixing bases are installed on the two sides of one end of the soft cushion, a first installation frame is installed above the fixing bases, and a second installation frame is installed above the first installation frame. A connecting frame is arranged at the front end of the supporting base, a first mounting seat is arranged at the upper end of the interior of the supporting base, a second mounting seat is arranged on one side of the first mounting seat, a first connecting seat is mounted below the first mounting seat, a first air cylinder is mounted on one side of the first connecting seat, and a second connecting seat is mounted below the second mounting seat. And an air cylinder II is mounted on one side of the connecting seat II.

The utility model relates to the field of leather stress improvement, and discloses a leather stress improvement device which comprises a winding column, the winding column is rotationally arranged above a workbench, a clamping groove is formed in the surface of the winding column, an arc-shaped plate is clamped in the clamping groove in a sliding mode, a fixing plate is fixed to the top face of the workbench, and the fixing plate is fixed to the top face of the workbench. A buckling and pressing plate is rotationally arranged on the top face of the fixing plate, the fixing plate and the buckling and pressing plate are rotationally arranged through a hinge, a plurality of fixing columns are fixed to the surface of the winding column, and blocking plates are rotationally inserted into the fixing columns. According to the leather winding device, the threaded ring moving downwards can apply downward acting force to the connecting arc plate, the magnitude of the acting force applied to leather by the buckling and pressing plate can be increased, then a worker places the other end of the leather into the clamping groove, and the other end of the leather can be fixed to the winding column; and then a worker tightens the leather by rotating the winding column, and mechanically stretches the leather, so that the internal stress is reduced.

The invention discloses a mechanical stretching device and a seat unit, the mechanical stretching device comprises a base, a base, a backrest assembly, a leg assembly, a connecting structure, a driving device, a swing assembly and a supporting assembly, the leg assembly and the backrest assembly are both rotatably connected to the base, and the leg assembly and the backrest assembly are arranged on the two opposite sides of the base; the connecting structure is connected to the leg assembly, the driving device is rotationally connected to the connecting structure, the swinging assembly is movably connected to the base, the supporting assembly is movably connected to the swinging assembly, one of the swinging assembly and the supporting assembly is provided with a rail, and the other one is provided with a guide piece; in the process that the mechanical stretching device is converted from the sitting posture position to the TV posture position, the guide piece and the track are relatively static; in the process that the mechanical stretching device is converted from the TV posture position to the lying posture position, the guide piece moves along the track so that the supporting assembly can be supported on the ground.

The utility model provides a device for measuring the elasticity modulus of graphene in water based on a mechanical stretching method, which comprises electronic graphene stretchers, a water tank and a graphene resistance measuring instrument, the electronic graphene stretchers are arranged on two sides of the water tank and are used for fixing graphene materials and applying external force to deform the graphene materials, and the graphene resistance measuring instrument is used for measuring the elasticity modulus of the graphene in the water. The graphene resistance measuring instrument is arranged outside the water tank and is connected with the graphene material in the water tank through a wire to measure the resistance of the graphene material, the initial resistance of the graphene material is measured through the graphene resistance measuring instrument, and then the force application handle is rotated to change the length of the graphene material; measuring the graphene material through a graphene resistance measuring instrument to obtain the resistance after the length is changed, measuring the tensile force of the rotating force application handle on the graphene material through a tensile force electronic display of the electronic graphene extensometer, and then substituting the measured physical quantity into an elastic modulus calculation formula to obtain the elastic modulus of the graphene material. The elasticity modulus of the graphene material in water can be completed.

The invention discloses a production process and equipment of a high-elastic antibacterial knitted fabric, and relates to the technical field of textiles. The method comprises the following steps: S1, knitting and weaving core-spun yarns: taking spandex filaments as core yarns, and externally wrapping cotton / polyester blended yarns for knitting and weaving; s2, pretreatment: treating in an alkali-oxygen bath at the temperature of 90-95 DEG C for 20-30 minutes; s3, mercerizing and stretching integrated treatment: immersing the fabric into a caustic soda solution with the concentration of 220-250g / L, synchronously starting a two-way stretching device, and applying intermittent warp-wise and weft-wise elastic expansion to the fabric. When the knitted fabric just starts to shrink, the two-way stretching device intervenes in the shrinkage process so as to intermittently stretch the knitted fabric for multiple times, the knitted fabric is repeatedly stretched and loosened, the shrinkage of the knitted fabric is controlled within a small range, a part of structure is kept, the situation that the knitted fabric is excessively shrunk is avoided, and the knitted fabric is more comfortable to wear. Therefore, the fiber damage of the knitted fabric during final mechanical stretching and resetting can be effectively reduced.

The application relates to the field of clothing fabric shaping devices, and discloses a clothing fabric shaping device, which is characterized in that an independent mechanical stretching area is additionally arranged after the high-temperature shaping area and before the cooling area; the fabric is shaped at high temperature, the molecular chain is in a high-elastic state, and then the fabric immediately enters the stretching area to receive forced mechanical stretching; the time sequence design of 'first relaxation and then stretching' can completely release the residual stress which has been loosened but not fixed at high temperature through external force traction, so that the fiber molecular chain is rearranged in the stretching state, and then enters the cooling area for quick fixing. The application has the advantages and effects of eliminating residual stress and avoiding fabric wrinkles.

The invention discloses an extremely cold-resistant down jacket fabric and a preparation method thereof. The preparation method comprises the following steps: mixing hot-pressing ceramic particles, a polyvinylidene fluoride polymer matrix, a thermoplastic polyurethane synergistic matrix and a heat conduction filler to prepare a hot-pressing composite material; s2, spinning the hot-pressing composite material prepared in the step S1 into hot-pressing composite fibers, and carrying out mechanical stretching or electric field polarization treatment; s2, weaving the hot-pressing composite fibers treated in the step S2 into a hot-pressing inner layer with a three-dimensional coil structure and a porous structure; laminating the high-elasticity blended material, the aerogel thermal insulation material and the waterproof breathable film material to form a compressed outer layer; the hot pressing inner layer is arranged on the inner side of the compression outer layer; the integrity is ensured through the lamination technology, when a wearer exercises, the pressure applied by the compression outer layer and the internal deformation work cooperatively, so that mechanical energy is converted into heat, and the heat is rapidly conducted through the heat conduction network; meanwhile, the aerogel layer blocks heat loss, and the PU film discharges moisture to keep dry and comfortable.